OsACL-A2 is involved in iron transport and positively regulates iron dependent disease resistance

• DOI: 10.22541/au.171106987.78345708/v1
• Publication Date: 2024-03-22T01:11:21Z
• Authors: Wenjing Duan; Aaron Chan; Peng Xu; Yingxin Zhang; Lianping Sun; Beifang Wang; Yongrun Cao; Yue Zhang; Min Jiang; Dian Li; Daibo Chen; Yongbo Hong; Xiaodeng Zhan; weixun wu; Shihua Cheng; Qunen Liu; Liyong Cao
• Keywords: Chlorosis; Wild type

Iron is an essential nutrient required for growth, development and also impacts disease resistance in plants. Plant absorb iron through their roots citrate plays a vital role transport of Fe 3+ the xylem. In this study, we found that rice cytoplasmic ATP-citrate lyase subunit A2, OsACL-A2 ( Os12g0566300) serves as crucial factor uptake translocation. Leaf levels were depressed osacl-a2 mutant which caused deficiency induced chlorosis, activated defense signaling eventually necrosis mature leaves. Furthermore, loss activity reduced leaves had not reached necrosis. Citrate are increased mutant, while ACL wild type upregulated response to both starvation pathogen attack. We hypothesize generates source-sink gradients targeted lysis thus directing movement citrate-Fe 3+.